7642 UTC | Alldatasheet

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UTC 7642 LINEAR INTEGRATED CIRCUIT UTC UNISONIC TECHNOLOGIES CO. LTD 1 QW-R110-015,A ONE CHIP AM RADIO CIRCUIT

DESCRIPTION

UTC 7642 is suitable for low voltage portable Radio, cassette system and other wireless AM system. The package of UTC7642 is TO-92. F E A T U R E *Low operating voltage: Down to VCC=1.3V *Low Quiescent Current:ICCO= 0 . 2 m A *Low external component required. TO-92 EQUIVALENT CIRCUIT 2 T1 T2 T3 5.6KΩ 12pF 3.3KΩ 12KΩ 12KΩ 12pF 12KΩ R6 12KΩ T5 T6 T7 T8 T9 T10 12KΩ 12KΩ 12KΩ R11 12KΩ R10 12KΩ 23pF R13 12KΩ R12 12KΩ R14 74.6Ω R15 12KΩ ABSOLUTE MAXIMUM RATINGS (Tested at Ta=25°C, unless otherwise specified) PARAMETERS SYMBOLS MIN. MAX. UNIT Supply Voltage V CC 6 V Operating Temperature Topr -10 60 °C Storage temperature T STG -55 150 °C

UTC 7642 LINEAR INTEGRATED CIRCUIT UTC UNISONIC TECHNOLOGIES CO. LTD 2 QW-R110-015,A

ELECTRICAL CHARACTERISTICS

(Tested at Ta=25°C, VCC=1.3V,fm=1KHZ,fO=1MHZ,MOD=30%, unless other specified) PARAMETERS SYMBOLS TEST CONDITIONS MIN. TYP. MAX. UNIT Supply Voltage V CC 1.2 1.3 1.6 V Quiescent Current I CCQ V I=0 0.14 0.20 0.30 mA Input Resistance R I - 3 - M Ω Maximum Sensitivity SM V OD=3mV - 600 - µV Detector Output Voltage V OD V I=10mV 5 15 30 mV The Range of AGC ∆A - 30 - dB TEST CIRCUIT Vin UTC 76422 3 100kΩ RAGC 1.5kΩ 0.1 µF 0.01 µF 75 Ω Vout Vcc APPLICATION CIRCUIT UTC 76422 3 600 µH 140pF 7pF 100kΩ RAGC 1kΩ 0.01 µF 0.15 µF 0.1 µF 1kΩ 32Ω 820Ω 7.5kΩ 57Ω 1.5V

UTC 7642 LINEAR INTEGRATED CIRCUIT UTC UNISONIC TECHNOLOGIES CO. LTD 3 QW-R110-015,A UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice.